Product Name | 2",7" - Dichlorodihydrofluorescein diacetateH2DCFDA, H2DCF DA |
Size | 100 mg |
Catalog # | AS-85706 |
US$ | $96 |
Cell-permeable substrate for fluorimetric detection of oxidases (including peroxidase) | |
Detailed Information | Material Safety Data Sheets (MSDS) |
Storage | -20°C desiccated and protected from light |
References | 1. Donato MT, et al. (2004).Drug Metab Dispos 32, 699-706.2. Liu J, et al. (2004).Arch Biochem Biophys 424, 33-43.3. Chougnet A, et al. (2003).Bioorg Med Chem Lett 13, 3643-5. 4. Dunn AR, et al. (2002).J Am Chem Soc 124, 10254-5.5. Nakamura K, et al. (2001).Anal Biochem 292, 280-6.6. Thapliyal R and Maru GB (2001).Food Chem Toxicol 39, 541-7. 7. Roser R and Thomas H (2000).Z Naturforsch [C] 55, 915-22.8. Kobayashi Y, et al. (1998).Biochemistry 37, 6679-88. |
Molecular Weight | 487.29 |
Molecular Formula | C24H16Cl2O7 |
Spectral Properties | Abs/Em = 495/529 nm |
Solvent System | DMSO |
Product Citations | Geyfman, M. et al. (2012). Brain and muscle Arnt-like protein-1 (BMAL1) controls circadian cell proliferation and susceptibility to UVB-induced DNA damage in the epidermis. PNAS doi: 10.1073/pnas.1209592109.Yang, Y. et al. (2010). MSP hormonal control of the oocyte MAP kinase cascade and reactive oxygen species signaling. Dev Biol 342, 96.Sun, K-H. et al. (2009). Novel genetic tools reveal Cdk5"s major role in golgi fragmentation in Alzheimer"s Disease. Mol Biol Cell 19, 3052.Monroe, R. et al. (2006). Mercury abolishes neurotrophic factorstimulated Jak-STAT signaling in nerve cells by oxidative stress. Toxicol Sci 94, 129. |
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制品在冻干机隔板上的位置对于制品的热历程有相当大的影响,这种影响又称为边缘效应。小型冻干机的隔板面积小,冻干箱体对于制品的热辐射很大,边缘效应愈加明显。附上一张示意边缘效应的图片。
我用东富龙LYO-0.5型冻干机测10%蔗糖溶液共晶点,冷冻过程中电阻值变化是慢慢上升,升温的时候也是一样,最大值是100兆欧,没有突变点。网上查到的10%蔗糖共晶点是-26℃,但是控制面板显示在电阻值达到100的时候只有-13.5℃,问过东富龙相关人员,他们说溶液共晶点就是电阻达到100的那个值即-13.5℃。当溶液达到共晶点温度是,电阻率应该是非常大的,到底有多大?真的只有100兆欧吗?用冻干机测共晶点这个方法要怎么验证?不验证的话没有说服力
上海田枫生产型冻干机可达到100平方,可做药材冻干,希望可以帮到你!
进口品牌:GEA, IMA, Telstar
国内几家其实技术上都差不多
东富龙:品牌效应第一,不过这么多年研发投入了很多,质量有一定提升
舒博拉尼:以前Telstar的技术 但也被丢的差不多了 不善的管理使其产品缺乏市场竞争力
浦东:算是冻干老前辈,可惜这么多年不思进取,其产品的技术含量已经远远落于人后
新华:收购了山东浩器,冻干机和进出料应该是刚刚起步,但凭借其上市公司的背景,发展将会很迅猛
翡诺:东富龙背景的公司 技术与其相似 不过人员配备和资金上无法与东富龙相提并论 和其他厂商一样 只能在国内二线市场谋求生存
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